TCL Alcatel FLASH2 PLUS Technical manual

L2 Repair Document TCLCommunication Ltd.
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FLASH2 PLUS
FL02
Note: this manual is non-contractual and TCL Communication Ltd. can modify it without prior
notice on the characteristics of described equipments.

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1.0 2016/3/12 Draft creation Wilson li
Rev. Date Modification description Prepared By Checked By Approved By

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Content
1Level 2 repair process ..............................................................................................4
2Warranty Check and Visual Inspection ...................................................................5
2.1 Warranty confirmation of L1.....................................................................................5
2.2 Visual mechanical check..........................................................................................6
2.3 Pretest........................................................................................................................7
3Battery......................................................................................................................16
3.1 Battery information.................................................................................................16
3.2 Battery test ..............................................................................................................18
3.4 Note of Battery ........................................................................................................20
4. Software download .................................................................................................20
4.1 Equipments requested when download：.............................................................20
4.2 Install driver..............................................................................................................20
4.3 SW download process.............................................................................................21
5 Disassembly and assembly FL02 ..............................................................................26
5.1 ESD Safety................................................................................................................26
5.2 Disassembly tool......................................................................................................27
5.3 Disassembly process...............................................................................................27
Disassembly Notice:......................................................................................................34
5.4 Reassembly Process ..............................................................................................35
5.5 Disassembly process evaluation...........................................................................36
6Disassembly Complete...........................................................................................37
7Level 2 repair...........................................................................................................40
7.1 power on issue .........................................................................................................41
7.2 Charge issue.............................................................................................................42
7.3 Display issue ............................................................................................................43
7.4 Vibrator issue ..........................................................................................................44
7.5 Touch panel issue...................................................................................................45
7.6 SIM recognize issue................................................................................................46
7.7 TF card recognized issue.......................................................................................47
7.8 Main camera issue ..................................................................................................48
7.9 Sub camera issue....................................................................................................49
7.10MIC issue .................................................................................................................50
7.11Speaker issue..........................................................................................................51

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8PCBA exchange.......................................................................................................51
9Other component exchange...................................................................................52
Function Test..................................................................................................................53
1 Level 2 repair process
Reassembly
OK
OK
Start
Visual Inspection
Warranty Check
Pretest & Failure confirm
SW Upgrade
Disassembly
L2 Repair
Retest
Function test
PCBA Replace
NG
NG
NG
Back up user data

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2 Warranty Check and Visual Inspection
2.1 Warranty confirmation of L1
IMEI sticker check:
1) Power on the handset, enter *#06#
2) If the IMEI sticker in the back casing is not lost:
We should make sure that the IMEI number MUST be the same with the one on the IMEI sticker; if
not, it’s out of warranty policy.
Humidity sensitive label
If humidity sensitive label is not good, the cell phone will be considered as out of guarantee.
1). Liquid was detected by humidity sensitive label.

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2). Position of humidity sensitive sticker.
2.2 Visual mechanical check
Mechanical warranties check items:
1) Corrosion
Corrosion on the USB connector, SIM connector, and other metal surfaces。
2) Hole (diameter > 1mm)
Holes on any surface, including the front casing, furnished frame, battery cover, touch Lens,
keypad…
3) Bump
Bumps (diameter > 1mm) on any surface, including front casing, decorate frame, battery
cover, touch Lens, keypad, etc.

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4) Scratch
Scratches (length > 3mm) on any surface, including the front casing, decorate frame, battery
cover, touch Lens, keypad, etc.
5) Distortion
Bend, twisted or crushed on the h/s, cover/casing or connectors, etc.
6) Broken
Touch broken, casing/cover broken, etc.
7) Dropped
Keypad tear off, touch lens, connectors dropped, etc.
8) Gap
External physical damage relating to abnormal use, like front case and frame opened
9) Others
Damage caused by disassembly ,wrong part assembly, loss of components
Use in abnormal environment like high temperature causing plastic melts
2.3 Pretest
1) Check that the SIM card is set correctly.
2) Power on the cell phone.
3) If the cell phone asks to input NCK code, which means it is SIM locked, and can only be worked with
dedicated SIM card. Use the correct SIM card.

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4) Enter the phone code if necessary.
5) If power on, test step by step with the auto test code:
Press *#2886# in dial screen and then you will see the interface displaying the SW version. Select
“Auto” to start the auto test, or select “MANU” to do the MMI test manually.
If one of the tests failed during “Auto” test mode, it will show “Failed: XXX”, press “Next” to go on test
and press “END” to power off.
Traceability
I. You can get some information such as IMEI, CU-REF, PTH, Date Code, etc.
II. Press “Pass” to continue.
Touch Panel1
I. “Please draw on the yellow area” according to instructions;
II. Press “Pass” to continue.
Touch Panel2
I. “Please draw on the yellow area” according to instructions;
II. Press “Pass” to continue.
LCD MIRE
I. You will see the LCD display three colors: RED, GREEN and BLUE if it
functions well;
II. Press “Pass” to continue;

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LCD BLACK
I. You will see the LCD displays black if it functions well;
II. Press “Pass” to continue;
LCD GRAY
I. You will see the LCD displays grey if it functions well;
II. Press “Pass” to continue;
LCD GRAYLEVEL
I. You will see the LCD displays grey level if it functions well;
II. Press “Pass” to continue;
LCD WHITE
I. You will see the LCD displays white if it functions well;
II. Press “Pass” to continue;
KEYPAD
I. Press the key displayed on the screen. The key on the screen will turn grey
when you press it if it functions well;
II. Press “Pass” to continue.
LCD BACKLIGHT
I. The screen backlight will be flashing if it functions well;
II. Press “Pass” to continue.

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KEYBOARD BACKLIGHT
I. The keyboard backlight will be flashing if it functions well;
II. Press “Pass” to continue.
MAIN CAMERA
Press “Pass” to continue if the front camera functions well.
FRONT CAMERA
Press “Pass” to continue if the main camera functions well.
HALL
I. It will response accordingly when close the flip cover; Or close a magnet to the
red circle area in the picture below, then it will response;
II. Press “Pass” to continue;
MAIN FLASH